OE-SPEC- 9MM 11.0" AR15 Barrel- Nitride

Excellent workmanship, easy install and shoots sub 1.5”groups at 30 yards with factory 115 gr also with 147gr subsonic with Q erector suppressor. Very pleased with the results, no change with or without suppressor.

This one fits the needs to a perfect T. I would highly recommend it to anyone in the Carbine / Pistol build mode.

https://www.kakindustry.com/contract-9mm-11-inch-melonite-barrel9mm Pistol from Hell! Three years ago I decided to build an AR 9mm Pistol of my own because getting one at a Gun Shop was impossible. Watching videos on YouTube showed many AR Pistols in 5.56 NATO with 10.5" barrels but all were custom built. Only a couple videos showed 9mm AR Pistols but they used Glock Mags and had no Last Round Hold-opens. Colt was the only manufacturer that offered a 16" Carbine that had a Last Round Hold-open but no Pistol was made; I figured building my own was in order! One of the 9mm AR Pistol videos gave a list of parts used for the build such as Upper Receiver, Barrel, Sights, etc. The Barrel was from KAK but only a 5" and I wanted a 10.5" like Colt's 9mm Submachine Gun. I came here to KAK and found the VALUE-LINE 9mm NATO 11" Barrel. I mated it to a Rock River Arms 9mm A4 Upper Receiver, identical to Colt's in every respect! I was well on my way to not only having my own 9mm AR Pistol, but becoming that less Wealthy of a person! To make a long story short, I now have a 9mm Pistol from Hell that, with its Franklin Armory BFSIII Trigger Group, can dump a 32 Round Uzi-style Magazine faster than you can say: Supercalafragalisticexpialadocious! Plus 2" Groups at 50-yards from a Supported Bench position when firing 124 Grain 9x19mm NATO, with this KAK VALUE-LINE 11" Barrel, are the norm when using my Sun Optics 4x32 ILR Prism Scope!

I paired this barrel with the KAK 9mm BCG. Great barrel for my use; up to 50 meters. It's installed in an Aero Precision upper receiver and with the Mean Arms Endomag. I use a KAK 6.5 oz extended buffer and 308 carbine spring. Shot only 300 rounds of 124 grain, so far and am very happy with this set up; very reliable.

Great Value.

The workmanship is very well done. Shipped fast and well-protected. Haven't shot it yet but I have no doubt it will work flawlessly. As others have said, under a 10" Handguard the threaded protion just protrudes a bit. I recommend this and would buy it again

The barrel is well finished and more accurate than I was expecting an AR-9 to be. I installed this with a 10" rail and a micro slimline flash can. Very happy with the build.

Replaced my Colt factory barrel with this and couldn't be happier!

Works perfect with Hahn block and Colt/UZI magazine. I plan on buying another.